Reconfigurable intelligent surface (RIS) is an emerging technology to enhance wireless
communication in terms of energy cost and system performance by equipping a …

Providing secure communications over the physical layer with the objective of achieving
secrecy without requiring a secret key has been receiving growing attention within the past …

In this paper, we investigate secure and reliable transmission strategies for multi-cell multi-
user massive multiple-input multiple-output systems with a multi-antenna active …

C-RAN is a promising new design for the next generation, an important aspect of it in the
energy efficiency consideration. Hence, it is considering an innovative candidate to use it as …

In this paper, we consider an underlay multiple-input-multiple-output (MIMO) cognitive radio
network (CRN) including a pair of primary nodes, a couple of secondary nodes, and an …

In this paper, a multiple-input single-output (MISO) simultaneous wireless information and
power transfer (SWIPT) system, including one base station (BS) equipped with multiple …

This paper considers secure simultaneous wireless information and power transfer (SWIPT)
in cell-free massive multiple-input multiple-output (MIMO) systems. The system consists of a …

We present two physical layer secure transmission schemes for multiuser multirelay
networks, where the communication from M users to the base station is assisted by direct …

We investigate the secrecy performance of dual-hop amplify-and-forward multi-antenna
relaying systems over Rayleigh fading channels, considering the direct link between the …

To the best of our knowledge, this article represents the first attempt toward robust
beamforming design for multiuser downlink communications in intelligent reflecting surface …